twist, bend, deform, flex, turn - cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar"
The Gauss function is used to simultaneously convolve the image, remove noise from the image and smooth the image, which enhances the image on multi-scale[22-29].
To acquire features at different scales, SIFT use Gaussian filters to change the variance to convolve with the original image and also the downsampled images.
# defining the coefficients a <- c(1:3, 0, 0) b <- c(5:7, 0, 0) # calculating the FFT A <- fft(a) B <- fft(b) # convolve via multiplication # of A and B c <- Re(fft(A * B, inverse=T) / length(a)) # would give the same result c2 <- convolve(a, b, conj = F) print(c) ####### OUTPUT ######## > 5 16 34 32 21 The result is given in the last line of the program listing.
In order to perform edge detection with the Roberts operator initially it is necessary to convolve the original image, with the following two kernels [11], [17]:
WWF-Pak organizes annual meeting in order to convolve the Green Office certified companies on a single forum and provide in depth official and industrial practices layout necessary for keeping environmental constraints in equilibrium.